Marking-stylus for automatic telegraphs



(No Model.)

'T. F. TAYLOR, MARKING STYLUSPOR AUTOMATIC TBLEGRAPH3.

Patented Feb. 5, 1884.

I NV EN TOR T/zea d0r-e ETayZ/0r By his .d/tarneys w Uru'rnn STATES 'ATENT rrrcn.

THEODORE F. TAYLOP',.OF BROOKLYN, NEXV YORK.

MARKING-STYLUS FOR AUTOMATIC TELEGRAPHS.

SPECIFICATION forming part of Letters Patent No. 293,112, dated February 1884.

Application filed September 18,1883. (NomndeL) I 5 ink is applied to the cylinder by means of a pen or stylus, when the latter is in contact therewith. hen, however, the stylus is raised from the cylinder, it is essential that the flow of ink should cease. It has been found a matter involving considerable (lifticulty to properly control the flow of ink.

The object of my invention is to provide a stylus which will apply the ink evenly when in contact with the cylinder, and by means of which its flow may be fully controlled.

The invention consists in narrowing the duct through which the ink is conducted immediately above the nib of the stylus, and in causing it to widen again toward the nib and 0 to terminate in a flattened opening which reaches entirelyacross the marking-point. By thus narrowing or constricting the inlccluct, Iam enabled to prevent a too-rapid flow of the ink, and at the same time avoid the choking which is liable to occur if the duct is narrow throughout its entire length. By again widening the duct into a flattened nib, I am enabled not only to apply the ink in a sufficiently broad line, but I have also found that the ink will flow through the duct more evenly. I In the face of the nib I prefer to form a narrow slit or cut extending across the walls of the nib-piece. The effect of this is to cause the ink to flow more freely from the pen as 4 5 soon as the nib is placed in contact with the surface-to which the ink is to be applied. A pen so constructed forms a more regular and even mark.

In the accompanying drawings, Figure l is an elevation, partlyin section, of a stylus embodying my'inventioinend Fig. 2 is a detail .drawing, showing the construction of the nib piece, both views being enlarged.

Referring to the figures, A represents the main portion of the stylus, which is tubular in form, the inner bore a serving as a duct for conveying the inkor other non conducting material from any suitable reservoir to the nib of the stylus. The tube A may be bent into any suitable form for'conveniently ap- 6' plying the ink. At the lower end of the section A is attached a nib-piece, B, which con sists of a steel or other hard-metal section, about three-quarters of an inch in length, se curely fastened to the section A. The nibpiece is preferably secured to the main section by means of a neck, I), entering the section A, and it may be fastened by soldering, brazing, or merelybeing constructed to flt'tightly therein. In some instances it may be found desirable to screw the nib-section into the main section. By thus constructing the nibsection separate from the main section, the former may be replaced, when worn out, without increasing the expense of supplying a new main section, A. Through thenib-piecc B is formed a narrow hole, I), in diameter about one sixty-second of an inch. Thisnarrow passage constitutes a throttle for the inkduct, and prevents too rapid flow of ink. The lower end of the nib -piece is flattened, as shown at c, and across the end is formeda narrow slit or cut, (I, such asmight be formed by means of a watclrmakers fine saw. The narrow opening b is widened into this sawcut from a distance of about onecighth of an inch above the slit (2. I

The whole stylus may be supported in any customary manner, a slide-support, e, being represented in this instance for this purpose.

I claim as my invention- '1. A marking-stylus constructed with an ink duct narrowed or constricted near its lower extremity, and widened into a flattened opening at the nib, substantially as described.

' 2. A marking-stylus consisting of two sections, the main section and the nib-piece, the latter being constructed with an aperture nar= .rower through a portion of its length than that formed in the main section, and widening 103 at the nib into a flattened opening, substantially as described.

3. A stylus constructed with an ink-duet Intestimonywhereof I have hereunto sub narrowed through a portion of its length, said scribed my name this 14th day of September, 10 stylus terminating in a flattened nib-piece. A. D. 1883. having a slit or cut formed across its face.

4. The combination, substantially as hereinbefore set forth, of the main section A, and Witnesses: the nib-piece B, having the narrow aperture DANIEL XV. EDGECOMB, band slit d. OHARLEs A. TERRY.

THEODORE F. TAYLOR. 

